Talk show host Jimmy Kimmel has said he wasn't laughing at Fergie's now-infamous rendition of the American national anthem, despite being caught on camera with a smile on his face during her performance on Sunday night.

Fergie's sultry take on The Star Spangled Banner at the National Basketball Association's (NBA) All-Star Game at the Staples Center in Los Angeles caused a social media meltdown, with face-in-the-crowd Kimmel caught up in the story.

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After much speculation that he was enjoying Fergie's performance for all the wrong reasons, the presenter addressed the 'issue' on his show on Tuesday night.

"I feel like I need to address something that happened Sunday night at the NBA All-Star Game," he said.

"Somehow, I became a part of a national anthem fiasco."

"Fergie, the singer from the Black Eyed Peas, gave an unusually sultry version of our national anthem. And I wound up in the middle of it," Kimmel continued.

"I just want to say, the reason I was smiling is because I love the national anthem so much. That's the face I make when I really love a song."

"That was some arrangement, though," Kimmel joked. 

"In hindsight, trying to work in the words 'my humps, my humps, my lovely lady lumps' may have been a mistake."